Sand valve



Feb. 27, 1923. 1,446,842. E. W. DOERING.

SAND VAL VE.

FILED MAY 1, I920.

Patented Feb. 27, 1923.-

EMIL w. benefits, or r-nonnuon, MASSACHUSETTS.

SAND vALvE.

Application flled May 1, 1920. Serial no. 378,317. r v

To ZZZ whom it may concern: 7

Be it known that I, EMIL W. DOERING, a

citiaen of the United States, and a' resident:

' the like.

The objects of my invention are to provide a simple, rugged structure which is economic of construction, readily appl ed,

easily accessible for cleaning or'inspection,

and which is highly efficient in operation.

As will appear hereinafter, my devlce and its arrangement in the filter, vat or room,

provides means for increasing the filter capacity of the apparatus, and by reversing the direction of the flow of the water or liquid through the valve and filter, permlts thefilter bed to be washedvand freed from impurities which collect on the filter bed during the process of filtering.

The invention consists in the various arrangements of parts and details of construction as hereinafter set forth, and, more particularly, as pointed out in the appended claims.

I attain these objects by the device illustrated in the accompanying drawing, of which a Fig. 1 is a side elevation, partly in section,

showing the application of my device in a filter apparatus or other suitable vat or room;

Fig. 2 is a plan view of my sand valve;

Fig. 3 is a side elevation of the same:

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 2;

Fig. 5 is a view taken on the line 5-5 of Fig. 3; and

Fig. 6 is a view taken on the line 6-6 of Fig. 5.

Similar numerals refer to similar parts throughout the several views.

I will now describe my sand valve. This device consists essentially of an upper part 1 and a corresponding lower part 2 held together by the screw 3. As shown in the drawing, my preferred form of construction consists of hollow central portions 4 having hollow radial arms 5 and provided with openings 6. The lower part 2 is provided with av screw threadedpip'e connection 7 and a br dge 8, as is shown more particularlylin F igs;4,'5 and 6. The screw 3 fitsinto the I threaded portion of bridge 8 and'holds the two parts 1 and 2 together in spaced relation. In order to provide such suitable spaced relation between "parts 1 and 2, lugs 9-49 are provided. While I 'have'shown a dome shaped construction of parts '1 and'2 provided withfourradial arms 5 and open= ings 6, obviously my invention permits of the use of other construction, as more or fewer arms and openings might be provided if desired. It may here be noted that bridge 8 serves the double function of affording" an anchor seat for screw 3 and the sometime 5 serves also a sa means'for defiecting thein fio'wing' wash water, as will be' more 'fully stated below. 7 I 5 r r I My sand valve may be used as shown in Fig. 1, where the screw threaded arts 7 are tapped into a pipe 10 which is coated at or near the bottom of the filter, vat or room. Any desired number of valves-may broken quartz, gravel, or the like, and this may be covered with a finer filter material .be attached to a single pipe and more than I as occasion may require. The water orliquid to be filtered may be supplied by pipe 11 and is permitted to percolate through the filter bed, then through the sand valves and out through a pipe 10. The openings in the sand valves ofier increased drainage area,

find that by the use of my sand valve 2.

larger amount of liquid may be filtered in a given time and the capacity can be regulated by the number of valves employed. It is also found that when the filter bed becomes contaminated with a layer of sediment or the like, said bed may bereadily cleansed by reversing the flow of water and forcing the liquid into pipe 10, through the stem of the sand filter 7 where, by means of bridge 8 the liquid is deflected and permitted to gently pass out through the openings 6 and through the lateral peripheral openings between parts' 1 and 2. In this manner the impurities maybe quickly and easily removed from the filter bed, without disturbing, the filter material thereof.

as the filtered water or other liquid readily Having thusidescribed my invention, what I claim as' 'newand useful an'd'desire to secure by Letters Patent is 1. In a device of theicharacten described a dome-shaped upper body portion provided with radially extending arms, a correspond ing lower body portion and radially extending arms, said arms bein provided with apertures, means for'holding said upper and lower-body porti'onsiand arms in spaced relation, and ineans for iremovably fastening together said lbodypo'rtions and said arms.

12. 'ln afdevice ofthecharacter described, gaome shaped upper body portion providedwith radially extending arms, a cone spending lower body portion and radially extjnding arms, said armsbeing provided with apertures, means for holding said upper and lower body portions and arms in'spaced relation means .f or removably fastenlng t0- ge'thensald bodyzportions and arms, and

-meansifor anchoringsaid device to anopen pipe ppqr 3.V In aQdev-ice of the character described, an iiipper body portion provided with man all i-eiitending' arm'ss-l a corresponding lower body portion and radially extending arms,

reac es I said lower body; portion being provided with a hollow screw tap and'abridge extending receiving receptacle a hollow pipe extendinga'long the bottom of said receptacle and having one end projecting through the wall of the same, a 'seriesof sand valves mounted on said pipe in spaced relation comprising hollow body portions and arms inspaced relation and provided with apertures for receiving filtered liquid,

5. I 11 a filter apparatus comprising a: liquid receiving receptacle, a hOlIowQ-pipe extending along the bottom of said-receptacle having one end "projecting through the wall oft-he same and av series of sand valves inount'ed on said pipe comprising hollow body portions and radial arms in spaced relation and provided with apertures for discharging-flush water to cleanse the filter bed. 7

- in testimony whereof Ihave hereunto set my hand onthis 27th day or April AID 1920.

EM-nfW DoERiNG. 

